修复: B-03b-R10③工作流事件补execution_id治本并发串扰(emit填+消费exec_id守卫)

crates/df-workflow/src/executor.rs

@@ -179,8 +179,11 @@ impl DagExecutor {
         }
 
         let total = start.elapsed().as_millis() as u64;
+        // B-03b-R10 ③: WorkflowCompleted 携带 execution_id,供 forward 循环按 exec_id 匹配
+        // (全局 event_bus 单例下并发工作流的终态事件不再误触发他人 forward 的完成判定)。
         self.event_bus
             .send(WorkflowEvent::WorkflowCompleted {
+                execution_id: self.execution_id.clone(),
                 total_duration_ms: total,
             })
             .await;